ABSTRACT
Bolted lap splice (hidden) connections provide an easy solution for splicing rectangular hollow section (RHS) tension members. In contrast to the more common gusset plate connections where the gusset plate protrudes beyond the width of the slotted member, the gusset plate of the hidden joint connection is fitted into the inside width of the unslotted RHS. After bolting of the gusset plates, a cover is placed over the part of the gusset plates that extends outside of the RHS. Recently, a number of tensile tests on hidden joint connections have been carried out. Technical feasibility of welding inside the hollow section has been of special interest. While profound knowledge exists on most possible failure modes (gross yielding, net section tensile failure, etc.), only very limited research exists on shear lag failure. A literature study and a numerical investigation have been carried out to study the shear lag rupture mode of the hollow section.
