
Hafiz Taheri
Lead Research Engineer at HERA (Heavy Engineering Research Association) specializing in seismic weld design and structural steel connections in New Zealand.
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May 29, 2026
NZS 3404 Seismic Weld Design; What the Research Shows
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6:08speaker_1HOST
Mm-hmm.

Hafiz TaheriGUEST
And, uh, we had already identical samples, uh, made, uh, uh, made with the same weld profiles, but they're tested under static ones.

Hafiz TaheriGUEST
So in this research, we are going to compare the result, test results from cyclic ones with static ones, and the main goal is that to understand what is the weld failure in these samples when, uh, we are, uh, introducing cyclic strain hardening around the weld.

Hafiz TaheriGUEST
Uh, yeah, an- another research that we have, uh, the second one is effect of ancillary weld details on seismic connections performance, and in this research, uh, our another student, Dinesh, is working.

Hafiz TaheriGUEST
He's going to test a few large-scale moment end plate connections made with access hole and without access hole.

Hafiz TaheriGUEST
So we know that the shape of access hole in American standard is costly, and sometimes it's not practical to be fabricated.

Hafiz TaheriGUEST
So we are going to check that, uh, it's possible to use a simple shape for the access hole, and also even more, we want to see that we can, uh, eliminate using access hole for complete penetration butt welds or not.
10 MINS LATER
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17:52speaker_1HOST
Um, you know, where, where does industry uptake really come into play here? Uh, how does a fabricator engineer end up doing something differently because of this program?