NEEDED
2010 FLORIDA BUILDING CODE FIXES OTHER THAN ENERGY: RULE 61G20.1.001
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RATIONALE |
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Florida
Building Code, Building |
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Chapter 16 - Structural Design |
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1 |
FIGURE
1609A ULTIMATE DESIGN WIND SPEEDS, V FIGURE
1609B ULTIMATE DESIGN WIND SPEEDS, V FIGURE
1609C ULTIMATE DESIGN WIND SPEEDS, V |
Editorial – change “alt” to “ult” |
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2 |
1609.7
Garage doors and rolling doors. |
Editorial – correct reference section. |
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3 |
Add Section 1612.4.1 as
follows: 1612.4.1 Modification to ASCE 24-05. Table 6-1 and Section 6.2.1 in ASCE 24 shall
be modified as follows: 1.
The title of
Table 6.1 shall be “Minimum Elevation of Floodproofing,
Relative to Base Flood Elevation (BFE) or Design Flood Elevation (DFE), in Coastal A Zones and in Other Flood Hazard Areas that are
Not Section
6.2.1 shall be modified to permit dry floodproofing
in Coastal A Zones, as follows: “Dry floodproofing of nonresidential structures and
nonresidential areas of mixed-use structures shall not be allowed unless such
structures are located outside of High Risk Flood Hazard areas [Remaining
text unchanged] |
The proposed code change is within
glitch criteria permitted for inconsistencies with federal regulations. Summary of modification: Permit dry floodproofing
of nonresidential buildings in flood hazard areas identified as Coastal A
Zones if designed in accordance with ASCE 24 to account for wave loads and
the potential for erosion and local scour. Many beaches of Florida coast are
designated as Zone V (Coastal High Hazard Area) on FEMA Flood Insurance Rate
Maps. The landward limit of Zone V is
where waves predicted to occur during the base flood fall below 3-ft in
height. Inland of these areas are
flood hazard areas where conditions during the base flood develop waves
between 1.5 ft and 3 ft
high; these areas are called Coastal A Zones for the purpose of designing and constructing buildings within the
scope of the 2010 Florida Building
Code, Building. Over the past
30-40 years many Florida communities have, as allowed under Federal
regulations for the NFIP,
permitted dry floodproofing
measures to be used for nonresidential buildings located in these areas now
called Coastal A Zones. Experience has
shown these measures, if properly designed, protect against base flood
conditions. The proposed code change
authorizes the continued use of dry floodproofing
measures in accordance with the standard referenced by Section 1612.4 (ASCE
24, Flood Resistant Design and
Construction). This code change
will allow small businesses to dry floodproof
buildings in Coastal A Zones, which increases the options available for
providing the required level of protection. Submitted
by Rebecca Quinn on behalf of Joy Duperault of DEM For
more details, see Attachment #1 |
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4 |
1609.1.2.4 Modifications to
ASTM E 1996. Section 6.2.2 of ASTM E 1996 shall be modified as follows: 6.2.2 Unless otherwise
specified, select the wind zone based on the basic wind speed as follows: 6.2.2.1WindZone 1 - 130 mph ≤
basic wind speed < 140 mph, and Hawaii. 6.2.2.2 Wind Zone 2 - 140 mph
≤ basic wind speed < 150 mph at greater than 1.6 km (one mile) from
the coastline. The coastline shall be measured from the mean high water mark.
6.2.2.3 Wind Zone 3 - 150 mph
(58 m/s) ≤ basic wind speed < 160 mph (63 m/s), or 140 mph (54 m/s)
≤ basic wind speed ≤ 6.2.2.4 Wind Zone 4-basic wind
speed > |
Unintended results from the integration of previously adopted
Florida-specific amendments with the model code. The intent of the change was to
correlate the provisions of ASTM E 1996 and the ultimate wind speeds of ASCE
7-2010 within the code. There was no intention to expand Wind Zone 4 into new
areas of the State. The correlating change does much more than correlate the
code by expanding Wind Zone 4 provisions for impact resistive systems
intended for Miami-Dade County into more areas of the State than intended by
ASTM.
Submitted
by Joe Belcher For more details,
see Attachment #2 |
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5 |
FBC, Residential R301.2.1.2.1 Modifications to
ASTM E 1996. Section 6.2.2 of ASTM E 1996 shall be modified as follows: 6.2.2 Unless otherwise
specified, select the wind zone based on the basic wind speed as follows: 6.2.2.1WindZone 1 - 130 mph
≤ basic wind speed < 140 mph, and Hawaii. 6.2.2.2 Wind Zone 2 - 140 mph
≤ basic wind speed < 150 mph at greater than 1.6 km (one mile) from
the coastline. The coastline shall be measured from the mean high water mark.
6.2.2.3 Wind Zone 3 - 150 mph
(58 m/s) ≤ basic wind speed < 160 mph (63 m/s), or 140 mph (54 m/s)
≤ basic wind speed ≤ 6.2.2.4 Wind Zone 4-basic wind
speed > |
Same as above.
For more details, see attachment #3 |
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6 |
Revise
Tables 2308.9.5, 2308.9.6, 2308.10.2(1), 2308.10.2(2), 2308.10.3(1), and
2308.10.3 (2). Chapter
35
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Equivalency
of standards In response to recent grading agency requests and
after evaluation of applicable testing programs and results, the American
Lumber Standards Committee has certified new design values for Southern Pine
2x4s, No. 2 and lower grades, effective June 1, 2012 (2x4s only). These
modifications are needed to reflect these new design values. Comprehensive information about the need
for and application of the new design values can be found at the websites of
the Southern Pine Inspection Bureau and the Southern Forest Products
Association (www.spib.org, and www.southernpine.com). For more details,
see attachment #4 Submitted by Paul Coats/American Wood Council.
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7 |
FBC, Residential – Chapter 43 Delete “ 1997 Guide to Wood
Construction in High-Wind Areas” |
Editorial - This guide is no longer
referenced in the Florida Building Code, and was replaced by the guide
associated with the AF&PA Wood Frame Construction Manual, which is
correctly referenced under AF&PA
For more details,
see attachment #5 Submitted by Paul Coats/American Wood Council. |
[RCQ1]Mo – this is intended to be strike-thru of the dash that is in the current Table 6-1 title