Comm T/I: renovation of the Emergency Department; includes elec, plbg, mech / tb
Reviewed by: Bolen, Wayne A. Permit #: C14-1805
Phone: 343-8072 Date: 11/3/2014
Fax: 249-7393
Email: BolenWA@muni.org
Permit Manager: Tony Barganier
Phone: 343-8339
Email: BarganierTA@muni.org
Project: Alaska Regional Emergency Department Addition and Renovation
Review Number: 342243
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PERMIT STATUS
10/7/2014 – Review complete. Comments issued.
11/3/2014 – Responses reviewed. Comments issued.
Advisory Comment (no response required): This review is based on the requirements of the Anchorage Administrative Code (AAC), 2009 International Building Code (IBC), 2009 International Residential Code (IRC) and all adopted references thereto as amended by MOA. The following comments must be addressed before a permit can be issued. The approval of plans and specifications does not permit the violation of the codes, or any federal, state or local regulations.
LATERAL SUPPORT FOR ADDITION
Reference page B-9 of the calculations and the drawings. Page B-9 of the calculations indicates that the new addition is tied to the existing and that the existing lateral system is supporting the new addition. Please clarify how this addition is tied to the existing and verify that the ties can transfer the required loads.
Comment remains. ACI 318-05 section D.3.3.6 requires the anchor capacity to be reduced to 0.4 times the capacity where a non ductile limit state controls the design. This does not appear to have been done. Please note that since the columns are lateral resisting elements it may be better to use the anchors in shear as a three sided diaphragm in one direction and a simple span diaphragm in the other. WAB – 11/3/2014
EXISTING SEISMIC
Reference page B-18 of the calculations. It appears that all that was checked for the existing is that the new base shear was compared to the existing base shear. This is not the required check. It is required to verify that the demand capacity ratio (DCR) for any lateral elements has not increased by more than 10% or where it has it must be shown that the element can transfer the loads required by current code. Please clarify. Reference IEBC section 302.4 or 707.5 (it is not clear which IEBC method has been chosen for this addition).
Comment resolved. Response accepted. WAB – 11/3/2014
TIE ARRANGEMENT IN GRADE BEAMS
Reference sheet S2.01 of the drawings. ACI 318-08 section 7.10.5.3 requires ties to be arranged such that every corner and alternate longitudinal bar shall have lateral support provided by the corner of a tie with an included angle of not more than 135 degrees and no bar shall be further than 6 in. clear on each side along the tie from such a laterally supported bar. It does not appear as if the grade beam details meet this requirement. Please clarify.
SPIRAL TIE
Reference detail 2 on sheet S2.00 of the drawings. ACI 318-08 section 7.10.4.2 requires spiral reinforcement to be provide with an extra 1 ½ turns of the spiral at the end of each spiral unit. It is not clear where this requirement has been indicated on the drawings. Please clarify.
Comment not applicable. This is an existing condition. WAB – 11/3/2014
SPECIAL INSPECTORS
Please provide a letter from the Owner indicating who they will be hiring to provide the special inspections for this project. The special inspectors must be licensed in the types of inspections to be performed. Reference IBC section 1703.1.
Comment remains. It does not appear as if the requested information has been provided. WAB – 11/3/2014
Please provide a written response to the comments and include one copy of additional or revise calculations, and two copies of additional or revise drawings.
