Experimental Study on Constant-Amplitude Fatigue Performance of Weld Toe in Steel Tube of Welded Hollow Spherical Joints in Grid Structures

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Specimen label</td><td class="align_center"><i>D</i> × <i>T</i></td><td class="align_center"><i>d</i> × <i>t</i></td><td class="align_center"><i>L</i></td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Group 1</td><td class="align_center">200 × 8</td><td class="align_center">48 × 3.5</td><td class="align_center">180</td></tr><tr><td class="align_left">Group 2</td><td class="align_center">200 × 8</td><td class="align_center">60 × 3.5</td><td class="align_center">200</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Specimen ID and geometric parameters.</div>

Advances in Materials Science and Engineering

tab1

Table 1

Table 1: Experimental Study on Constant-Amplitude Fatigue Performance of Weld Toe in Steel Tube of Welded Hollow Spherical Joints in Grid Structures 