Effects of Structural and Seismic Factors on the Constant-Strength Ductility Spectra Based on NGA-West2 Database

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Ground motion parameters</td><td class="align_center">Range of values</td><td class="align_center">Numbers</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left" rowspan="2">PGA</td><td class="align_center">≤200 gal</td><td class="align_center">4296</td></tr><tr><td class="align_center">&gt;200 gal</td><td class="align_center">1239</td></tr><tr><td class="align_left" rowspan="2">EPV</td><td class="align_center">≤10 cm/s</td><td class="align_center">3728</td></tr><tr><td class="align_center">&gt;10 cm/s</td><td class="align_center">1807</td></tr><tr><td class="align_left" rowspan="2"><i>D</i><sub>s5−95</sub></td><td class="align_center">≤25 s</td><td class="align_center">4456</td></tr><tr><td class="align_center">&gt;25 s</td><td class="align_center">1079</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Classification results of ground motion records based on ground motion parameters.</div>

Shock and Vibration

tab5

Table 5

Table 5: Effects of Structural and Seismic Factors on the Constant-Strength Ductility Spectra Based on NGA-West2 Database 