Performance of Special-Shaped Concrete-Filled Square Steel Tube Column under Axial Compression

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Material</td><td class="align_center"><i>t</i> (mm)</td><td class="align_center"><i>f</i><sub>y</sub> (MPa)</td><td class="align_center"><i>f</i><sub>u</sub> (MPa)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Steel Q235</td><td class="align_center">4</td><td class="align_center">320.5</td><td class="align_center">480.6</td></tr><tr><td class="align_left">Steel Q235</td><td class="align_center">5</td><td class="align_center">390.0</td><td class="align_center">488.3</td></tr><tr><td class="align_left">Steel Q355</td><td class="align_center">4</td><td class="align_center">456.7</td><td class="align_center">546.7</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Civil Engineering

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Table 2

Table 2: Performance of Special-Shaped Concrete-Filled Square Steel Tube Column under Axial Compression 