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Re: CMU rebar splice

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Tarek,

This is exactly how I feel.
I would specify lap splice length per 2013 CBC (43") as a minimum.
As a side note - for bottom #5 rebars in 2500 psi NWC Class B splice is 25 
inches.

Thank you,

Steve

______________________________
V. Steve Gordin PhD
Licensed Structural Engineer
SGE Consulting Structural Engineers
2081 Business Center Drive #105
Irvine CA 92612
949-552-5244
sgordin(--nospam--at)sgeconsulting.com

On Oct 30, 2014, at 11:57 AM, Tarek Mokhtar <Tarekmokhtar(--nospam--at)earthlink.net> 
wrote:

> Steve,
> 
> It is probably a little bit more than 26" in poured in place concrete, not 
> to mention that your chances of getting the rebar where you actually want 
> it ( from face of block) is almost zero, I would "easily" go with the 
> longer splice length Tarek Mokhtar, SE 
>> Larry,
>> This is correct.  However, imagine a 10 ft free-standing CMU wall in CA 
>> with #5 rebars stressed to 90% of Fs=24ksi (ASD). Will you be comfortable 
>> with lap-splicing these rebars by 26 inches? Like as if it was in concrete? 
>> Thanks, Steve ______________________________
>> V. Steve Gordin PhD
>> Licensed Structural Engineer
>> SGE Consulting Structural Engineers
>> 2081 Business Center Drive #105
>> Irvine CA 92612
>> 949-552-5244
>> sgordin(--nospam--at)sgeconsulting.com
>> On Oct 30, 2014, at 11:27 AM, lrhauer(--nospam--at)earthlink.net wrote:
> 

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