An Experimental Study of Structural Identification of Bridges Using the Kinetic Energy Optimization Technique and the Direct Matrix Updating Method

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2"> </td><td class="align_center" colspan="3">Analysis and experimental results</td></tr><tr class="thead"><td class="align_center">FE analysis results (Hz)</td><td class="align_center">Modal experiment results (Hz)</td><td class="align_center">Error ratio (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">1st bending mode</td><td class="align_center">9.1719</td><td class="align_center">9.0890</td><td class="align_center">0.9120</td></tr><tr><td class="align_left">2nd bending mode</td><td class="align_center">11.2544</td><td class="align_center">11.2557</td><td class="align_center">0.0115</td></tr><tr><td class="align_left">3rd bending mode</td><td class="align_center">16.8643</td><td class="align_center">17.1442</td><td class="align_center">1.0326</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Comparison of analysis and experimental frequency.

Shock and Vibration

tab5

Table 5

Table 5: An Experimental Study of Structural Identification of Bridges Using the Kinetic Energy Optimization Technique and the Direct Matrix Updating Method 

Table 5 | An Experimental Study of Structural Identification of Bridges Using the Kinetic Energy Optimization Technique and the Direct Matrix Updating Method 