Analysis of Fire Resistance Response of Double Shell Structure under Specific Fire Scenarios

Abstract:

The double-shell structure under high temperature will lead to structural changes in material properties. Thermal expansion causes the production of thermal stress of the additional constraints bar, whose security research is the aim of this paper. The paper chooses Laoshan Velodrome Olympic venues as the research object, dividing the temperature zones of shell structure, and conducting the FDS simulation temperature field. The internal temperature of structural elements of computational shell in various zones will be in accordance with the first constant load and dead load after warming loading method to give a finite element analysis and give an evaluation of the safety of shell structure. The results show that: the temperature of the fire scenarioⅠis significantly higher than that of the fire scenario Ⅱ.We selecte the temperature of the fire scenario Ⅱ as the temperature load, and find that the local damage of six bars in the high-temperature zone occurs, which won’t cause structural damage to the whole structure. Therefore, these 6 bars need to be sprayed with fire retardant coating.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 2704-2708
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.2704
• Online since: May 2012
• Authors: Xin Chen
• Keywords: Double Shell, Finite Element Analysis (FEA), Fire Scenario, Local Damage, Temperature Field

References

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