Item 8E~.
CITY OF ATLANTIC BEACH
CITY COMMISSION MEETING
STAFF REPORT
AGENDA ITEM: Hurricane Protection for Commission Chambers (Update)
SUBMITTED BY: Rick Carper, P.E., Director of Public Works~~~
DATE: June 5, 2006
AGENDA ITEM #3L
JUNE 12, 2006
BACKGROUND: At the May 22 Commission meeting, Staff recommended procurement of
the Windshield Hurricane Protection System for the City Commission
Chamber Windows and doors. The Commission expressed concern
about the type and rating for the fasteners for this system and directed
Staff to get an updated quote for using aluminum and Lexan panels for
the proposed protection.
Staff obtained quotes for 1) all aluminum panels, 2) all Lexan panels, and
3) a mixture of Lexan on the upper windows and aluminum on lower
windows. The top channel for mounting the panels would be permanently
~'' mounted, the bottom channel of r the lower windows would be removable
with stainless steel sidewalk bolts.
Staff was also requested to determine the wind load standards to which
the Commission Chambers were constructed. From the 1989
construction plans, City Hall and the Commission Chambers were
~„ constructed to the Standard Building Code wind load requirement for
Coastal Exposure - 110 mph (fastest mile wind). This is comparable to
current building code requirements of 130 mph (V3S - 3 second gust wind
speed). All window protection systems evaluated are rated to this same
~'" wind speed.
RECOMMENDATION: Staff recommends procuring the Windshield HPS system with the
dual lock fastener system. Because the Commission Chamber
~, window frames are inset inside cedar outer frames, the panels
would be protected from wind shear behind pushing them cut.
The dual lock system is available in a black or translucent color
and would be the least noticeable.
ATTACHMENTS: 1) Cost Comparison
2) Pictures of Installed Products
BUDGET: There is $10,000 allocated in Account 131-0000-519-64-00 for
Commission Chamber hurricane protection in FY 2006.
REVIEWED BY CITY MANAGER:
~.
June 12, 2006 Regular Meeting
AGENDA ITEM #8E
JUNE 12, 2006
S stem T e Cost
Windshield HPS Translucent anel $8,700.00
Armor Screen Nettin $14,000.00
Aluminum Storm anels all -ACE O a ue anel $9.433.00
Lexan Storm aneis all -ACE Trans arent anel $15.933.00
Mixture Lexan hi h / AI. Vow - Rollawa Mixture $14,730.00
June 12, 2006 Regular Meeting
AGENDA ITEM #8E
JUNE 12, 2006
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AGENDA ITEM #8E
JUNE 12, 2006
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AGENDA ITEM #8E
JUNE 12, 2006