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Transitioning Loads and Capacities between ASCE7 and EN 1990 / ETA

Transitioning Loads and Capacities between ASCE7 and EN 1990 / ETA

Transitioning Loads and Capacities between ASCE7 and EN 1990 / ETA

I am more familiar with ASCE7 and want to use a product which has testing done by EOTA which references EN 1990, 1991, etc. In general I'm wondering what I would need to do in order to go between the two standards.

In my specific case have an ETA (European Technical Assessment) report for an anchor that attaches to a ceramic panel. It outlines combinations for loads parallel (i.e. dead load) and perpendicular to the panel (i.e. wind load).
The factors are:
gamma_G = 1.35 for dead loads (permanent action)
gamma_Q = 1.5 for wind loads (leading variable action)

The test results for shear and tension use the 5% fractile and confidence level of 75%.
They recommend a safety factor, gamma_M = 1.8. So the value obtained within the 5% fractal would be divided by 1.8

EN 1991-1-4 derives their basic wind speed using a 50 year return period, 10 meters above the ground in open country terrain with low vegetation, and the average speed over 10 minutes.

These are all similar to ASCE7-05 except for the average speed duration. ASCE7 uses a 3-second gust.

So I'm thinking I can either convert my loads to EN and use all their standards or convert their resistance factors to ASCE7 (which I'd rather do).

Convert Loads to EN and use EN Docs:
Change wind speed from 3-sec gust to 10 minute average. Use all EN 1990 docs from here on out.

Change ETA resistance factors to ASCE7:
Not exactly sure. For starters, the 1.35 and 1.5 appear to be similar to DL=1.2 and WL=1.6 LRFD factors.
So if I define my loads using ASCE7 and use ASCE7 load factors, then use the ETA test result and reduce them by 1.8 it seems like that would give me a conservative result. However, I'm not sure what I would need to do to actually convert everything.


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