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RE: Anchor bolt sleeve - Pretension force

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Thanks Steve.  ASCE 'guidelines for design of anchorage in petrochem facilities' 
 has the sleeve length specified for full length of sleeve/tape, if it needs 
 to be tensioned. But, is there any calcs. or technical materials that 
discusses about the stretch vs. sleeve length, for partial or full length 
of anchor bolt? Secondly, what happens to the concrete bond with anchor bolt 
below the sleeve while pretensioning.  I think small cracks may develop, 
relieving the bond and ultimately, App. D calcs. picks up.

We followed ACI318, App. D, provided sufficient tension rebars close(< 9 
inches) to each anchor bolts, taken to the pile cap.


Ravi Vasu

-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of Steve Gordin Sent: Friday, October 02, 2015 10:30 AM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] Anchor bolt sleeve - Pretension force


ASCE 7-10 15.7.5 and C15.7.5:
Gauge length=(8)x(anchor diameter).

V. Steve Gordin PhD
Licensed Structural Engineer
SGE Consulting Structural Engineers
2081 Business Center Drive #105
Irvine CA 92612

> On Oct 2, 2015, at 8:02 AM, Vasu, Ravi <Ravi.Vasu(--nospam--at)> wrote:
> List,
> I have an anchor bolt case for  a compressor foundation done recently.
> A sleeve, 2 ft long is provided at top for a 2.5" dia(A354, Grade BC),

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