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Diaphragm Interaction Tables (Shear and Uplift)

Diaphragm Interaction Tables (Shear and Uplift)

Diaphragm Interaction Tables (Shear and Uplift)

(OP)
Bouras Industries has some new tables for determining allowable diaphragm shear based upon wind uplift.

http://www.njb-united.com/usd/ddds/DDDS46proof2.pdf

When I contacted Hilti, they were unaware of these tables (which incidently are only for welds and screws, not Hilti pins).

It appears that these values are critical for lightweight roofs (no ballast), high wind regions and tall buildings.

Has anyone else had experience with using these tables?

RE: Diaphragm Interaction Tables (Shear and Uplift)

I think the tables are new publication. I noticed them in the last month or previous edition of Modern Steel Construction and SE magazines inside covers.

I always check for diaphragm and uplift on my deck connectors. I need to study the new tables further since they have limited deck type and fastener types.

If you have any questions about the tables, contact their engineers. I found them to be responsive and helpful in explaining many of their materials.

I still rely on the SDI deck manuals which were based on research at West Virginia University by Dr. Larry D. Luttrell, PE. I think they are great references for any structural engineers’ library.

Regards,
Lutfi

RE: Diaphragm Interaction Tables (Shear and Uplift)

If you look at those tables and compare them to the values published, say in Vulcraft's catalog, I believe you'll find they have the same numbers if you look under 0 psf uplift.

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