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A platform for research: civil engineering, architecture and urbanism
Reliability Analysis in Structural Fire Engineering
Current structural fire resistance design is mainly based on the prescriptive requirements given in building codes that emphasized insulation methods to achieve adequate fire resistance. However, the prescriptive approach fails to consider the true performance of structural systems in fire and gives no evaluation of the reliability level of the design in the face of the wide range of uncertainties existing in the structural system and fire events. A numbers of studies and experiments have shown that the prescriptive fire resistance design could be excessive and expensive, but may not be safe enough under certain performance requirement levels. This paper briefly reviews the current progress on performance-based design in structural fire engineering. One of the key components of performance-based design is reliability analysis, which provides an objective manner of comparing alternative design solutions. A probabilistic framework is introduced to evaluate the structural reliability under fire considering uncertainties that exist in the system. Numerical simulations of sequentially coupled fire, thermal, and structural analysis are used to model the structural performance subjected to realistic fire events. Multiple reliability methods (i.e., Latin hypercube simulation and subset simulation) are introduced and compared in this study.
Reliability Analysis in Structural Fire Engineering
Current structural fire resistance design is mainly based on the prescriptive requirements given in building codes that emphasized insulation methods to achieve adequate fire resistance. However, the prescriptive approach fails to consider the true performance of structural systems in fire and gives no evaluation of the reliability level of the design in the face of the wide range of uncertainties existing in the structural system and fire events. A numbers of studies and experiments have shown that the prescriptive fire resistance design could be excessive and expensive, but may not be safe enough under certain performance requirement levels. This paper briefly reviews the current progress on performance-based design in structural fire engineering. One of the key components of performance-based design is reliability analysis, which provides an objective manner of comparing alternative design solutions. A probabilistic framework is introduced to evaluate the structural reliability under fire considering uncertainties that exist in the system. Numerical simulations of sequentially coupled fire, thermal, and structural analysis are used to model the structural performance subjected to realistic fire events. Multiple reliability methods (i.e., Latin hypercube simulation and subset simulation) are introduced and compared in this study.
Reliability Analysis in Structural Fire Engineering
Guo, Qianru (author) / Jeffers, Ann E. (author) / Jacoby, David J. (author)
AEI 2017 ; 2017 ; Oklahoma City, Oklahoma
AEI 2017 ; 659-671
2017-04-06
Conference paper
Electronic Resource
English
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