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> -----Original Message-----
> From: Chan, David [mailto:DCHAN(--nospam--at)]
> Sent: Thursday, September 23, 2004 6:50 PM
> To: seaint(--nospam--at)
> Subject: LFD vs. LRFD
> Can anyone shed some light on the differences between LFD and LRFD design
> methodologies?

I think the titles give you a clue:

LFD = Load Factor Design

LRFD = Load AND RESISTANCE Factor Design

IIRC, LFD was something akin to "Strength Design" of concrete which still
persists to this day.

LRFD is closer to the latter-day ideal of a true "limit state design."

I know I'm just spewing buzzwords, but at least you can do a GOOGLE on those
buzzwords for more information.

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