In recent years, some new criteria are proposed (Biondini and Frangopol 2011; Nathwani et al. 2008; Okasha and Frangopol 2009; Rackwitz and Joanni 2009; Su et al. 2013a). The structural safety levels are harmonized with life-quality objectives (Maes et al. 2003). Life-quality objectives are included in a life-cycle cost optimization and are used to determine optimal limit state.