I'm curious as to how others design lifting lugs. I am using AISC D.5 and J.7. The lug I am designing appears to be governed by bearing strength using AISC Eq J7-1 Rn = 1.8FyApb. But I also found reference to ASME-BTH-1-2008 Eq 3-54 where the bearing capacity is P=0.63Fy(Dpin)t which is a big difference, 1.8Fy vs 0.63Fy. I don't have the actual ASME document.
Also a co-worker attended an AISC seminar on Practical Connection Designby Larry Muir and it was mentioned that AISC D.5 should not be used for lifting lugs.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
With all of the hype around 3D printing, it can be easy to get lost in fascinating, intricate metal parts made with additive manufacturing. These parts, while impressive, are probably dissimilar from many of the parts you currently produce or use. So why invest in metal additive manufacturing? Download Now
Construction was at one time a highly regionalized business. Pragmatic and market forces made it more efficient for even a large, industrial general contractor to focus regionally. But inexorable trends are making it more important for major commercial, civil, engineering and industrial contractors to grow their global footprint.
Mining is a relatively straightforward business model, driven by cyclical patterns of commodity demand and availability. Disruptive technologies, however, are now offering new tools to teams that enable them to change the rules of the game in their favor. Download Now
Selecting business software for a medium to enterprise-sized construction concern is extremely challenging in large part because most enterprise resource planning (ERP) suites originated in the world of repetitive manufacturing and are therefore a poor fit for a project and asset-centric business. However, midsize to large contractors need the predictable, auditable processes that ERP delivers.