HomeMy WebLinkAboutMiscellaneous Construction Specification 2007-11-8
REQUEST FOR INFORMATION
RFI No.:
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Dale:
Project
Project No.:
To:
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orawing Ret:
Spec. Ref:
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IIOUDAY INH-SJIIlIMGAELD .
07-981.\ ..' < , .
frail: MEGA pACIfIC- JOBSITE
JerryWilson- Cell- 5OJ.51!H567
Jobsile Trailer- 541-744-8708
Jobsile Fax- 541-7#8732
,
AFGHAN ASSO"""TES.INC. "
VIII Fax: 503"621' 5539
Den* LaISen
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Respond by:
RES." ..~"~
Response by:
Copy to:
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Load as desajbed above is acceptable on Pff Slab: Do not driveJift on cantilevered
portions of slab without adding reshoring. ..
DerekLar.;cn, PE
AAI Engineering, Inc.
November 8, 2007
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ENGINEERING
MEMORANDUM
DATE:
TO:
November 8,,2007
Ron MiUer - Mega Pacific
BY:
SUBJECT:
Derek Larsen, PE
PROJECT:
PROJECT NO.:
Review of 2"" Stage Tendon Elongations - Lelle' 2 PIT Slab
And Approval for pouring back pour strip
Holiday Inn Springfield
A06123
We have reviewed the tendon elongations for the 2"" stage tendon stressing for the
second flOor PIT slab for both the first and second slab pours. The final and completed
elongations were provided to us on November 8, 2007. We have found that the
elongations are structurally acceptable, with the exception of one tendon lOcated at the
service elevator that was unable to be stressed due to having a cement blockage and poor
accessibility. This tendon should be stressed, which we were informed was possible with
installation of a work platform to provide better access.
After the tendons are cut off, and all of the concrete patching has been placed, ij will be
structuraDy acceptable to pour back the pour strip on grid H. The shoring below the pour
strip shalf remain in place for'a minimum time period of7 days, but shall not be removed
prior to the strength.of the concrete achieving a design strength of 5000 psi, measured
through field concrete cylinder testing. Furthermore, we suggest keeping the shoring in for
as long as possible, even after these minimum requirements are met, to allow the slab to
attain as much slrength and stiffness as possible.
Please calf if you have any questions.
~5 sw GrifIIlll Drive I Suite 300 I Bea_. OR I 97_
503.620.3030 IIel 503.820.553!l1 fax
www.saieng.com
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