Comparison of Two Mechanics-Based Methods for Simplified Structural Analysis in Vulnerability Assessment

<table>Upper and lower bound mean displacement spectral
shapes due to variation of the characteristic periods (in bold). The thin lines
show the upper bound spectrum +1<i>σ</i> and the lower bound spectrum −1<i>σ</i> 
 that represents the variability in
the coefficient <i>α</i>. </table>

Advances in Civil Engineering

fig16

Figure 16

Figure 16: Comparison of Two Mechanics-Based Methods for Simplified Structural Analysis in Vulnerability Assessment 