A Time-Variant Reliability Analysis of Reinforced Concrete Beams Working with Cracks under High Temperature

Zhen Qing Wang; Mu Qiao; Yu Lai Han; Zhu Ju

doi:10.4028/www.scientific.net/AMM.197.259

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 197A Time-Variant Reliability Analysis of Reinforced...

A Time-Variant Reliability Analysis of Reinforced Concrete Beams Working with Cracks under High Temperature

Abstract:

The reliability of a reinforced concrete beam has been largely discounted when it under the action of fire. For a more accurate description of concrete beams’ reliability, the impact of cracks in reinforced concrete beams has been taking into account. Concrete is divided into elastic zone and plastic zone to calculate its strength. A simple and feasible time-variant model of reliability index of reinforced concrete beams under fire has been given. The effect of ISO834 temperature rising curve on the reliability index of concrete beam at different time has been analyzed. The reliability of a reinforced concrete beam under the ISO834 standard heating curve was assessed by first order second moment method.

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Periodical:

Applied Mechanics and Materials (Volume 197)

Pages:

259-265

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.197.259

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Online since:

September 2012

Authors:

Zhen Qing Wang, Mu Qiao, Yu Lai Han, Zhu Ju

Keywords:

Crack, Fire Resistant, Reinforced Concrete (RC), Reliability

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References

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