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="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Specimens</td><td class="align_center">Static load design values for steel tube (kN)</td><td class="align_center">Static load design values for hollow sphere (kN)</td><td class="align_center">Ultimate bearing capacity of joints (kN)</td><td class="align_center">Failure position</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Specimen 1</td><td class="align_center">105</td><td class="align_center">109</td><td class="align_center">219.95</td><td class="align_center">Middle of tube</td></tr><tr><td class="align_left">Specimen 2</td><td class="align_center">134</td><td class="align_center">147</td><td class="align_center">293.22</td><td class="align_center">Middle of tube</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The design values and ultimate bearing capacity values of WHSJs.</div>

Advances in Materials Science and Engineering

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Table 4

Table 4: Experimental Study on Constant-Amplitude Fatigue Performance of Weld Toe in Steel Tube of Welded Hollow Spherical Joints in Grid Structures 