Fire Resistance of Composite Beams with Restrained Superposed Slabs

<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">Concrete parts</td><td class="align_center">Design strength</td><td class="align_center">ƒ<sub>ck</sub> (MPa)</td><td class="align_center">ƒ<sub>tk</sub> (MPa)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">The precast slab</td><td class="align_center">C30</td><td class="align_center">31.13</td><td class="align_center">2.39</td></tr><tr><td class="align_left">The postcast top layers</td><td class="align_center">C30</td><td class="align_center">46.70</td><td class="align_center">3.67</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Material properties of the unfired concrete.</div>

Advances in Materials Science and Engineering

tab2

Table 2

Table 2: Fire Resistance of Composite Beams with Restrained Superposed Slabs 