Structural Behavior of Thin-Walled Concrete-Filled Steel Tube Used in Cable Tunnel: An Experimental and Numerical Investigation

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">Age</td><td align="center">3 d</td><td align="center">7 d</td><td align="center">28 d</td></tr><tr><td align="center" colspan="4"><hr/></td></tr><tr><td align="left">Compressive strength (MPa)</td><td align="center">16.3</td><td align="center">24.8</td><td align="center">45.5</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Compressive strength of concrete at different ages.

Advances in Materials Science and Engineering

tab2

Table 2

Table 2: Structural Behavior of Thin-Walled Concrete-Filled Steel Tube Used in Cable Tunnel: An Experimental and Numerical Investigation 