Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Concrete strength grade</td><td class="align_center"><i>f</i><sub>cu</sub> (MPa)</td><td class="align_center"><i>f</i><sub><i>c</i></sub> (MPa)</td><td class="align_center"><i>P</i><sub><i>u</i></sub> (kN)</td><td class="align_center">Δ<sub><i>u</i></sub> (mm)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">C50</td><td class="align_center">50</td><td class="align_center">23.1</td><td class="align_center">3415.27</td><td class="align_center">3.2573</td></tr><tr><td class="align_left">C40</td><td class="align_center">40</td><td class="align_center">19.1</td><td class="align_center">3243.68</td><td class="align_center">3.1095</td></tr><tr><td class="align_left">C30</td><td class="align_center">30</td><td class="align_center">14.3</td><td class="align_center">2918.77</td><td class="align_center">3.6033</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Influence of concrete strength on ultimate axial bearing capacity and displacement of the specimen.</div>

Advances in Materials Science and Engineering

tab4

Table 4

Table 4: Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars 