pile caps/tie beams 3

[casasf]

I am trying to find out the requirement for tie beams between pile caps in IBC 2009. Can someone locate the section reference please?

I remember from the old codes there was a 10% design value for the tie beams.

Thanks.

 

[Lazzaroni]

Grade beams (tiebeams) are discussed in 1810.3.11 & 1810.3.12 in 2009 IBC. There was no mention of the 10% design value. 1810.2.2 discusses stability requirments for pilecaps.
I usually design the GB (stabilizing 1PC & 2PC) for the moment and shear due to piles being out of tolerance

 

[slickdeals]

There is a 0.1 Sds multiplier on the seismic side on piles if that is what you are trying to refer to

 

[BAretired]

Who cares? Ten percent of what, and what does it all mean? Forget about it. It has no meaning.

BA

 

[enko]

I would perform a Strut and Tie model for the pile caps.

 

[OldPaperMaker]

casasf,
The 10% times Sds that slickdeals referred to in his reply is found in section 12.13.5.2 in ASCE 7-05.

 

[slickdeals]

I hate it when people eagerly try to respond to a thread to help a fellow engineer and he/she disappears and we keep guessing as to what his question really is.

 

[BAretired]

slickdeals,

I understand what you mean, but if you look at the record, casasf has started three threads to date and has made only one response. Does that tell you something?

BA