Target structural reliability in life cycle consideration
by Jun Kanda, Tsuyoshi Takada, Hang Choi
International Journal of Risk Assessment and Management (IJRAM), Vol. 7, No. 6/7, 2007

Abstract: The concept of minimising life cycle cost can be rationally applied to determine a target reliability of structures. However, there has been a recent legal requirement to reduce CO₂ emissions, therefore, the minimisation of life cycle CO₂ emission could be an alternative approach in structural design. This paper explains the general formulae for deciding the optimum reliability by minimising the total life cycle cost and the amount of CO₂ emission in the structure's lifetime, and also shows that these formulae can be applied to decision making for the cost-benefit problem related to seismic strengthening of structures. Additionally, the role of the engineer is discussed, reflecting the current situation in Japan.

Online publication date: Mon, 23-Jul-2007

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