HomeMy WebLinkAboutLetter; Screen Enclosure Addition.r
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13630 58th StrE�.- . J., Suite 101
Clearwater, FL 33760
Tel# 727-532-9000
Suncoa St
Engineering and Design, Inc.
FL #AA26001769 #CA28841
Oct. 27, 2014
Tripod Aluminum, Inc.
6915 Vickie Circle
Melbourne, Fl. 32904
Re: 2415 Atlantic Beach Blvd.
Fort Pierce, Fl. 34949
Screen Enclosure Addition
In Care Of: Respective Building Inspector
Soils Requirement Verification
The specified soils requirement indicated on sheet A-1 is based upon the presumptive bearing
pressures of FRC Section R401.4.1. Soil testing is not required for this project.
Please contact out office if additional information is required.
Regards;
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13630 581h Street North, Suite 101, Clearwater, FL 33760
727-532-9000 727-532-9008 (Fax)
CHAPTER
FOUNDATIONS
SECTION R401
GENERAL
R401.1 Application. The provisions of this chapter shall con-
trol the design and construction of the foundation and founda-
tion spaces for all buildings. In addition to the provisions of this
chapter, the design and construction of foundations in areas
prone to flooding as established by Table R301.2(1) shall meet
the provisions of Section R322. Wood foundations shall be
designed and installed in accordance with AF&PA PWF
Exceptions:
1. The provisions of this chapter shall be permitted to be
used for wood foundations subject to the following:
1.1. Buildings shall have no more than two floors and a
roof.
1.2. Interior basement and foundation walls shall be pro-
vided at intervals not exceeding 50 feet.
1.3. When the foundation uplift loads determined from
Table R401.1 exceed 0 or when such uplift. loads
cannot be determined from Table R401.1, an engi-
neered design shall be required.
2. Buildings and structures located within the High -Veloc-
ity Hurricane Zone shall comply with the provisions of
Chapter 44 and, as applicable, Section R322 in flood
hazard areas.
R401.2 Requirements. Foundations shall be capable of resist-
ing all loads from roof uplift and building overturn. Foundation
uplift for light -frame wood or steel buildings shall be calcu-
lated or determined from Table R401.1.: Masonry buildings
within the dimensional scope of Table R401.1 shall be assumed
to be of adequate weight so as not to require uplift resistance
greater than that provided by the structure and any normal
foundation. Foundation construction shall also be capable of
accommodating all gravity loads according to Section R301
and of transmitting the resulting loads to the supporting soil.
Fill soils that support footings and foundations shall be
designed, installed and tested in accordance with accepted
engineering practice. Gravel fill used as footings for wood and
precast concrete foundations shall comply with Section R403.
R4013 Drainage. Surface drainage shall be diverted to a storm
sewer conveyance or other approved point of collection that does
not create a hazard. Lots shall be graded to drain surface water
away from foundation walls. The grade shall fall a minimum of
6 inches (152 mm)within the first 10 feet (3048 mm).
Exception: Where lot lines, walls, slopes or other physical
barriers prohibit 6 inches (152 mm) of fall within 10 feet
(3048 mm), drains or swales shall be constructed to ensure
drainage away from the structure. Impervious surfaces
within 10 feet (3048 mm) of the building foundation shallbe
sloped a minimum of 2 percent away from the building.
R401.4 Soil tests. Where quantifiable data created by accepted
soil science methodologies indicate expansive, compressible,
shifting or other questionable soil characteristics are likely to
be present, the building qfficial shall determine whether to
require a soil test to determine the soil's characteristics at a par-
ticular location. This test shall be done by an approved agency
using an approved method.
R401.4.1 Geotechnical evaluation. In lieu of a complete
geotechnical evaluation, the load -bearing values in Table
R401.4.1 ilialiibeass- nm
TABLE R401.4.1
PRESUMPTIVE LOAD -BEARING VALUES OF
FOUNDATION MATERIALSa
LOAD -BEARING
PRESSURE
CLASS OF MATERIAL
(pounds per square foot)
Crystalline bedrock
12,000 -
Sedimentary and foliated rock
4,000
Sandy gravel and/or gravel (GW and GP)
3,000
Sand, silty sand, clayey sand, silty gravel
and clayey gravel
2,000
(SW, SP, SM, SC, GM and GC)
Clay, sandy clay, silty clay, clayey silt,
silt and sandy silt
1,SOOb
(CL, ML, MH and CI)
For SI: 1 pound per square foot = 0.0479 kPa.
a. When soil tests are requiredby Section R401 A, the allowable bearing capaci-
ties of the soil shall be part of the recommendations.
b. Where the building official determines that in -place soils with an allowable
bearing capacity of less than 1,500 psf are likely to be present at the site, the
allowable bearing capacity shall be determined by a soils investigation.
R401.4.2 Compressible or shifting soil. Instead of a com-
plete geotechnical evaluation, when top or subsoils are com-
pressible or shifting, they shall be removed to a depth and
width sufficient to assure stable moisture content in each
active zone and shall not be used as fill or stabilized within
each active zone by chemical, dewatering orpresaturation.
SECTION R402
MATERIALS
R402.1 Wood foundations. Wood foundation systems shall be
designed and installed in accordance with the provisions of this
code.
4.1
2010 FLORIDA BUILDING CODE — RESIDENTIAL