Experimental Study on Flexural Behaviour of Lightweight Multi-Ribbed Composite Slabs

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">S1</td><td class="align_center">S2 &amp; S3</td><td class="align_center">S4</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Width of compression area <i>b</i></td><td class="align_center">1440 mm</td><td class="align_center">1440 mm</td><td class="align_center">480 mm</td></tr><tr><td class="align_left">Equilibrium equation <i>C</i> = <i>T</i>is used to define the depth of neutral axis <i>x</i>: <svg height="17.6175pt" id="M29" style="vertical-align:-6.1814pt" version="1.1" viewbox="-0.0498162 -11.4361 110.802 17.6175" width="110.802pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M545 106L524 126C493 85 467 65 455 65C438 65 427 113 405 238C448 295 498 362 543 439L533 448L478 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140C41 104 51 36 58 22C75 7 121 -12 172 -12C252 -12 337 35 337 126C337 195 286 231 210 262C166 281 126 304 126 348C126 388 152 417 191 417C240 417 274 378 294 318L319 325Z"></path></g></svg></td><td class="align_center">19.0 mm</td><td class="align_center">20.6 mm</td><td class="align_center">51.5 mm</td></tr><tr><td class="align_left">The ultimate moment is then calculated using</td><td class="align_left"> </td><td class="align_left"> </td><td class="align_left"> </td></tr><tr><td class="align_left"><span style="width: 204.144ptpx;"><svg height="17.6175pt" id="M30" style="vertical-align:-6.1814pt" version="1.1" viewbox="-0.0498162 -11.4361 204.144 17.6175" width="204.144pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M962 650H795L470 145L347 650H176L170 622C268 613 275 606 244 503L190 322C150 188 132 126 118 91C102 50 80 33 18 28L12 0H245L251 28C175 35 170 48 174 93C177 128 191 180 220 284L292 542H294C331 392 383 150 409 4H432L774 555H776L714 137C700 40 694 34 612 28L606 0H868L874 28C793 34 784 37 797 137L849 533C859 612 863 616 956 622L962 650Z"></path></g><g transform="matrix(.013,0,0,-0.013,16.439,0)"><path d="M535 323V373H52V323H535ZM535 138V188H52V138H535Z"></path></g><g transform="matrix(.013,0,0,-0.013,27.702,0)"><path d="M545 106L524 126C493 85 467 65 455 65C438 65 427 113 405 238C448 295 498 362 543 439L533 448L478 435C453 386 423 331 398 295H395C370 404 347 448 282 448C169 448 23 309 23 153C23 54 65 -12 128 -12C203 -12 283 70 339 155H341C360 29 380 -12 411 -12C444 -12 491 11 545 106ZM333 204C265 95 210 54 169 54C137 54 113 96 113 171C113 302 191 405 252 405C301 405 318 306 333 204Z"></path></g><g transform="matrix(.013,0,0,-0.013,33.782,0)"><path d="M619 670C619 686 593 712 555 712S459 686 410 634S335 504 320 430H250L219 400L222 388H312L258 73C223 -133 201 -166 187 -180C175 -191 158 -199 140 -199C123 -199 88 -188 74 -172C68 -166 63 -164 54 -171C38 -185 23 -201 23 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209 449C117 449 57 389 57 319C57 243 122 209 182 182C232 159 261 135 261 91C261 48 227 21 190 21C130 21 85 79 68 145L41 140C41 104 51 36 58 22C75 7 121 -12 172 -12C252 -12 337 35 337 126C337 195 286 231 210 262C166 281 126 304 126 348C126 388 152 417 191 417C240 417 274 378 294 318L319 325Z"></path></g><g transform="matrix(.013,0,0,-0.013,198.986,0)"><path d="M275 270C275 450 212 609 64 710L45 686C145 604 203 442 203 270S147 -63 45 -147L64 -170C213 -68 275 89 275 270Z"></path></g></svg></span></td><td class="align_center">98.0 kN·m</td><td class="align_center">91.9 kN·m</td><td class="align_center">92.8 kN·m</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Ultimate moment of fully composite state.</div>

Advances in Civil Engineering

tab7

Table 7

Table 7: Experimental Study on Flexural Behaviour of Lightweight Multi-Ribbed Composite Slabs 