Modal Parameters Estimation of Building Structures from Vibration Test Data Using Observability Measurement

<table class="table-group" id="tab10"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left">Mode</td><td align="center">Modal frequency (Hz)</td><td align="center">Modal damping ratio (%)</td><td align="center">Modal participation factor</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">1st mode</td><td align="center">0.903</td><td align="center">0.92</td><td align="center">0.694</td></tr><tr><td align="left">2nd mode</td><td align="center">2.684</td><td align="center">0.89</td><td align="center">0.357</td></tr><tr><td align="left">3rd mode</td><td align="center">3.958</td><td align="center">1.00</td><td align="center">0.061</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Estimation results of dynamic characteristics for Case <svg height="8.74858pt" id="M159" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -8.69876 6.62714 8.74858" width="6.62714pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.0135,0,0,-0.0135,0,0)"><path d="M384 0V27C293 34 287 42 287 114V635C232 613 172 594 109 583V559L157 557C201 555 205 550 205 499V114C205 42 199 34 109 27V0H384Z" id="g113-50"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="480" vert-adv-y="480"></glyph.data></g></svg>.

Shock and Vibration

tab10

Table 10

Table 10: Modal Parameters Estimation of Building Structures from Vibration Test Data Using Observability Measurement 