Performance-Based Multiobjective Optimal Seismic Retrofit Method for a Steel Moment-Resisting Frame Considering the Life-Cycle Cost

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="305737.fig.008a" src="https://static-preview.hindawi.com/articles/mpe/volume-2014/305737/figures/305737.fig.008a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Brittle connection</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="305737.fig.008b" src="https://static-preview.hindawi.com/articles/mpe/volume-2014/305737/figures/305737.fig.008b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Retrofitted connection</td></tr></table></td></tr></table>

<table>Hysteretic model for the rotational spring in a beam.</table>

Mathematical Problems in Engineering

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Figure 8

Figure 8: Performance-Based Multiobjective Optimal Seismic Retrofit Method for a Steel Moment-Resisting Frame Considering the Life-Cycle Cost 