Weld access holes allow workers access to the beam so they can complete the weld, said Ashwani Dhalwala, a principal of AEC Solutions who has worked extensively on the issue of fractures in steel. “There are less specific requirements for a weld termination hole.” “It may sound like a small thing, but it does change how you finish the inside of the hole,” Hazleton said. He’d like the holes referred to as “weld termination” holes. And the difference is critical.Ī weld access hole has much more stringent requirements in the building code, said Robert Hazleton, the president of Herrick Corporation, the Stockton-based company responsible for fabricating the steel beams that cracked. It’s unclear which type of hole the fabricators cut into the steel because they are not drawn into the shop designs. The cracks originated in an area where crews had cut “weld access” or “weld termination” holes. A subsequent investigation revealed the second crack in an adjacent beam, both of which are in a section of the building above Fremont Street. Authorities closed the center several hours later out of an “abundance of caution,” they said. The center closed in September after workers found the first crack in a four-inch-thick steel beam while installing ceiling panels.
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