Experimental Study on the System Performance of Adjacent Precast Concrete Box Beam Bridges

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Original condition</td><td class="align_center">State</td><td class="align_center">Concentrated load (kN)</td><td class="align_center">Load distribution factor of beam #1</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left" rowspan="3">Intact bridge</td><td class="align_center">Linear range</td><td class="align_center">0∼50</td><td class="align_center">About 0.30</td></tr><tr><td class="align_center">Near linear range</td><td class="align_center">50∼118</td><td class="align_center">0.30∼0.32</td></tr><tr><td class="align_center">Maximum load applied</td><td class="align_center">147</td><td class="align_center">0.54</td></tr><tr><td class="align_left" rowspan="2">Damaged bridge</td><td class="align_center">Ultimate capacity</td><td class="align_center">131</td><td class="align_center">0.70</td></tr><tr><td class="align_center">“Single Plate Load Effect” appeared</td><td class="align_center">102</td><td class="align_center">0.84</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Change of DDF at different load stages.</div>

Advances in Civil Engineering

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Table 3

Table 3: Experimental Study on the System Performance of Adjacent Precast Concrete Box Beam Bridges 