Year 2021,
Volume: 3 Issue: 2, 77 - 86, 30.11.2021
Ahoudou Ndoukouo
,
Jules Metsebo
,
J.m Njankouo
References
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concrete-filled steel tube column under axial loading. Int. Journal
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beam. Sci. China Technology 55: 264–275.
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of fire loading. Journal of Engineering Research and Applications
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higher order theory. Journal of Reinforced Composites 10: 102–
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under uniform heating. J Braz Soc Mech Sci Eng 29: 115–122.
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Wiley.
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steel beam under mechanical load. Journal of Constructional
Steel Research 67: 1864–1871.
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beam under mechanical loading and fire. Materials and Design
32: 1331–1336.
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amplitude vibrations of curved beams. Journal of Sound and
Vibration. 285: 1093–1107.
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behaviour under thermal effects. In Proceedings First International
Workshop on the Performance of Structures in Fire, Copenhagen.
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Fire. phdthesis, School of Engineering, University of Canterbury:
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Vibrational Analysis of a Metallic Column Submitted to Mechanical Axial Load and Fire Exposure
Year 2021,
Volume: 3 Issue: 2, 77 - 86, 30.11.2021
Ahoudou Ndoukouo
,
Jules Metsebo
,
J.m Njankouo
Abstract
Vibrational behavior and structural failure of a metallic beam submitted to simultaneous action of axial load and fire exposure are investigated. Analyses are made at ambient conditions and for two types of fire, ISO 834 fire and parametric fire. Vibrational equation based on heat conduction equation and field equations are constructed and numerically solved to obtain the responses in terms of time histories, bending moment in fire and time to failure against axial load ratio. The heat flux is high enough to affect material properties of the structure and their variation with temperature is taking into account in the mathematical formulation. Results show that heat flux resulting from fire action transforms the buckling problem occurring at room temperature into a bending one. Non-reversible responses and sooner arising of failure are observed for ISO 834 fire even for axial load ratio not able to cause buckling at room temperature. Unlike the case of ISO fire, parametric fire improves reversible deflections within the exposure time and later occurring of failure.
References
- Abbas, Y. A. S. A. R. M. I., H. Al-Salloum, 2016 Post-heating response
of concrete-filled circular steel columns. KSCE Journal of
Civil Engineering 21: 1367–1378.
- Aditya, A.-K., K., 2021 Post-fire exposure behaviour of circular
concrete-filled steel tube column under axial loading. Int. Journal
of Steel Structures 21: 52–56.
- Al-Hamd, G. M. M. S. C. L., R., 2020 Influence of loading ratio
on flat slab connections at elevated temperature : A numerical
study. Frontiers of Structural and Civil Engineering 14: 664–674.
- Avsec, O. M., J., 2007 Thermal vibrational analysis for simply supported
beam and clamped beam. Journal of Sound and Vibration
308: 514–525.
- Buchanan, . A., 2001 Structural Design for Fire Safety. Wiley.
- Eurocode, 2003 Design of Steel Structures-Structural Fire Design. European
Committee for Standardization.
- Feng, Y. L., X., 2012 Criteria of limiting temperature and parametric
analysis of the large deflection behavior for fully restrained steel
beam. Sci. China Technology 55: 264–275.
- Harshad, K. S., D., 2016 Behavior of steel structure under the effect
of fire loading. Journal of Engineering Research and Applications
6: 42–46.
- Huang, K. G., H., 2002 Buckling and initial postbuckling behavior
of sandwich beams including transverse shear. AIAA journal 57:
2331–2335.
- Kant, P. H., T., 1991 Buckling load of sandwich columns with a
higher order theory. Journal of Reinforced Composites 10: 102–
109.
- Kingsley, C. G. J. B. S. J. U. S. . A. A., U., 2018 Design of continous
concrete filled steel tabular column in fire. Thin-Walled
Structures 131: 192–204.
- Liu, K. G., L., 2006 Thermal buckling of heat-exposed axially restrained
composite column. Composites part A 37: 972–980.
- Mourão, S. V., H., 2007 On the behaviour of single-span steel beams
under uniform heating. J Braz Soc Mech Sci Eng 29: 115–122.
- Nayfeh, M. D., A., 1979 Nonlinear Oscillations. New York (N.Y.) :
Wiley.
- Ndoukouo, N. A. W. P., A., 2011 On the dynamics of fire-exposed
steel beam under mechanical load. Journal of Constructional
Steel Research 67: 1864–1871.
- Nubissie, N. A. .W. P., A., 2011 Dynamical behavior of a wooden
beam under mechanical loading and fire. Materials and Design
32: 1331–1336.
- Ribeiro, M. E., P., 2005 The effect of temperature on the large
amplitude vibrations of curved beams. Journal of Sound and
Vibration. 285: 1093–1107.
- Rotter, A., J.; Usmani, 2000 Fundamental principles of structural
behaviour under thermal effects. In Proceedings First International
Workshop on the Performance of Structures in Fire, Copenhagen.
- Seputro, J., 2001 Effect of Support Conditions on Steel Beams Exposed to
Fire. phdthesis, School of Engineering, University of Canterbury:
New Zealand.
- Timoshenko, J., S.; Gere, 1951 Theory of elastic stability.
- Yaobing, C. H., Z., 2018 Temperature effects on nonlinear vibration
behaviors of euler-bernoulli beams with different boundary
conditions. Shock and Vibration 6: 1–11.