Masonry- working stress or ultimate strength?

[playboyman007]

In design masonry structures, do you (experience engineers) perfer ultimate strength or working stress?

I'm working on a presentation and I've only finished a class using ASD on masonry. I noticed that the ACI completely changed from working stress to ultimate strength.

 

[kevo_55]

I personally prefer ASD. But looking in the newer codes, you'll find that when you're designing a bearing wall with an out of plane load you'll have to use LRFD.

 

[MA_PE]

Both methods are fine. The current trend is to have all designs (for all materials) following the LRFD method. Personally, I think it's like pounding a square peg in a round hole. The codes are becoming unnecessarily complex in order to convert traditional design methods to a one-size-fits-all format. As a result there are numerous "adjustments" or superfluous code provisions to make the newer methods match the results of the older tried-and-true design methods.

I haven't sdone much masonry, but my understanding is that it was traditionally ASD (just like steel design).

my :2cents:

 

[Casey]

You guys are just geriatric old farts.

Limit States is the future!!

(except when I am doing pile design, then ASD kicks ass!)

 

[MA_PE]

You guys are just geriatric old farts.

Hey I resemble that remark.

 

[kevo_55]

^^ I don't.