Reviewed by: Bolen, Wayne A. Permit #: C12-1221
Phone: 343-8072 Date: 3/5/2012
Fax: 249-7393
Email: BolenWA@muni.org
Permit Manager: Tony Barganier
Phone: 343-8339
Email: BarganierTA@muni.org
Project: West High Antenna
Review Number: 289020
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PERMIT STATUS
3/5/2012 – Permit 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.
1) Per the summary sheet the antenna has been designed as a Class III antenna, and well as with a Topographical Category of 2 with a crest height of 88'. Please clarify where in the input the factors for these assumptions are. For the Class III antenna, the importance factor is greater than 1, and for that topographical category and crest height Kzt is greater than 1. Please show where these factors are determined and inputted. It appears that "Wind Height Fact" might be the topographical factor. If so, just verify.
2) Reference page 2 of 8 of the calculations stamped by Dale Browning. The reactions used in these calculations do not match the reactions from the tower submittal. Please clarify or revise the design and resubmit. In many cases, the reactions on the tower submittal are higher.
3) Please provide drawings showing the construction of the tower includeing the connections between components. Reference AAC section 23.10.104.8.
4) The only drawing received appears to be a detail showing the connection at the base of the tower. The connection of the guys has not been provided. Please clarify. Reference AAC section 23.10.104.8.
5) Please provide a statement of special inspections in accordance with IBC section 1705. The statement of special inspections must include both the type and frequency of inspections. Where shop welding is done, special inspections will be required on these welds unless the shop is qualified to perform fabrication without special inspections (i.e. AISC or IAS certified). Special inspections for welds can be waived where installed by an AWS certified welder, and the weld is less than 50% stress. This must be indicated on the drawings.
6) Please provide a letter from the Owner indicating who will be performing the special inspection services for this project. The special inspector(s) must be licensed by MOA in the type of inspection(s) to be performed.
