|
Building
Code Data
Governing Building Code
Ohio Basic Building Code (OBBC)
-
This project
consists of the construction of a pre-engineered metal building to house a
retail sales showroom, offices for staff, and a stockroom storage area.
Building Code
Design Data:
| a) |
Area of New Building |
6,000 sq. ft. |
| b) |
Building
Use |
Use Group B
(Non-Separated Mixed) |
| c) |
Building Construction
Type |
2C |
| d) |
Occupants in Entire
Building
Per OBBC Table 1008.1.2 |
113 maximum |
| e) |
Structural Loads: |
|
Floor Live Load |
125 p.s.f. |
|
Roof Snow Load |
25 p.s.f |
|
Wind Load |
80 mph exposure B |
| f) |
Earthquake Data: |
|
Peak Velocity Related
Acceleration (Av.) |
0.077 |
|
Peak Acceleration
(Aa) |
0.10 |
|
Seismic Hazard Exposure
Group |
Group 1 |
|
Seismic Performance
Category |
B |
|
Soil Profile Type |
S3 |
| g) |
Basic Structural System: |
|
Response Modification
Factor (R) |
4 1/2 |
|
Deflection Amplification
Factor (Dd) |
4 |
- The 100 year flood elevation at the
building site is The top of floor slab elevation is
back to top
General
Construction
- It is the contractor's responsibility
to develop and maintain an erection procedure to insure the stability of
the building and safety for personnel during construction.
- Contractor shall follow all applicable
safety standards and building codes, during construction.
- Refer to the pre-engineered building
design drawings for the structural design of the building and the anchor
bolt layout.
- Locate fire extinguishers in the
office area and in the manufacturing area, as required by codes.
- The new building shall be
grounded in accordance with NFPA, as shown on the electrical drawings.
back to top
Foundations
- The foundation design is based
upon an allowable soil bearing f 2000 p.s.f. which shall be verified by an
independent testing laboratory.
- If soft or wet soil is found at
the bearing elevation, it shall be removed for a depth of 24 in. and
replaced with compacted granular fill.
- The contractor shall take
necessary precautions to insure that the foundation excavations remain dry
during construction.
- Compact all bearing surfaces
with a tamper prior to placing rebar.
- Compact interior fill in 6"
lifts around piers and behind walls. Assure that all walls and piers
have attained sufficient strength prior to placing backfill (allow min. 7
days curing).
- The bottom of all footing shall
be a minimum of 3' - 0" below top of final grade.
back to top
Masonry
- All masonry work shall be in
conformance with the latest edition of "Building Code Requirements
for Masonry Structures" and "The Specifications for Masonry
Structures" of The American Concrete Institute (ACI 530).
- Concrete masonry units (block)
shall conform to ASTM C90, and have a minimum compressive strength F'm =
1500 psi.
- Mortar shall conform to ASTM
C270, type M or S.
- Grout fill shall attain a
minimum strength F'c = 3000 psi
-
Maximum aggregate size shall
be 3/8"
back to top
Insulation
- The exterior walls shall be
insulated with R-13 rated insulation.
- The roof shall be insulated with
R-19 rated insulation.
- All insulation shall be
compliance with NAIMA Standard 202, ASTM E84-80 (flame spread of 25 and
smoke developed of 50).
- Place 2" board insulation
around the interior perimeter of all frost walls, extended from the top of
the footing to the underside of the floor slab. Assure that all
joints are tight.
back to top
Accessibility
Notes
- All exit doors shall be in
accordance with the requirements of The Americans with Disabilities Act.
Hardware shall allow the doors to be easily openable from the side which
egress is to be made, without the use of a key or other special knowledge
or effort.
- All door closers shall operate
with a maximum force of 5lb.
- All restroom fixtures shall be
manufactured and installed in conformance with The Americans with
Disabilities Act.
- Set rim of water closet at
18" above finished floor.
- Set top of lavatory at 34" AFF.
-
Provide grab bars behind and along one side of the water
closet.
back to top
Concrete
Construction
- All concrete work shall be in
conformance with the latest edition of "Structural Concrete for
Buildings" (ACI-301), and "Building Code Requirements for
Reinforced Concrete" (ACI-318).
- Comply with acceptable hot and
cold weather concrete standards.
- Cure all concrete in accordance with recommended practices of
ACI-301.
- Provide concrete with the
following 28 day strengths:
- Footings &
Piers.........3000 p.s.i. with 5% ± 1% entrained air
- Slab (interior).............3000
p.s.i.
-
Slab (exterior)............4000
p.s.i. with 5% ± 1% entrained
air
- All reinforcing steel is
to be ASTM A615, Grade 60.
- The pier ties may be Grade 40.
- Reinforce all slabs with one
layer of welded wire fabric, use 6 x 6 W 1.4 x W 1.4
- Place wire mesh in the center
of the slab, and take measures to maintain its location.
- Lap wire mesh 12"
- Welded wire fabric shall conform with ASTM A185.
- Provide 0.006 polyethylene vapor
retarder under new interior slabs, overlap edges 6" min.
- Provide 6" of compacted
stone fill below all slabs.
- Lap all reinforcing bars a
minimum of 24 in., unless otherwise noted on the design drawings.
- Maintain a minimum concrete
cover of 2" for all concrete exposed to weather or earth fill and
maintain 3" for all concrete cast against earth.
- Place ½ in. expansion joint
material between all piers and the interior slab, and at any location
where new concrete is poured against existing concrete.
- Anchor bolts are to be A307
material. The threads of all bolts shall be greased before placing
concrete.
- Refer to the pre-engineered
building drawings for anchor bolt locations.
back to top
Electrical
Notes
- The new buildings will be
supplied with power from new 120/208 service brought in by the power
company.
- All conductor wiring is to be
stranded copper with 600 volt insulation
- All circuit wiring shall be of
minimum size shown below, unless a heavier size is specified for
particular fixtures, or shown otherwise on the drawing.
|
20
amp
|
#12 THHN |
|
30 amp
|
#10 THHN |
- All wiring shall be run in rigid
conduit of a type, acceptable by the codes of the governing agencies.
Support conduit as required to maintain it straight and rigid.
- The entire electrical system is
to be grounded per NEC, Article 250.
- Emergency lights and exit signs
are to be self contained battery type. The branch circuit feeding
each emergency light or exit sign is to be the same branch circuit as that
serving the lighting in the area, and shall be connected ahead of any
local switches.
- The electrical installation is
to be performed in strict accordance with all requirements of the National
Electrical Code and state and local code regulations.
- All new electrical fixtures
shall be UL approved.
- Bond and ground metal framing
and siding per NEC, at (4) locations around the perimeter of each new
building. Provide a 5/8 in. diameter x 8 ft. long driven ground rod
with #4 bare copper, thermally attached to the building.
back to top
Handicap
Accessible Restroom Notes
Both restrooms shall be installed in
accordance with the Americans with Disabilities Act and as specified
below:
- Set the rim of the
water closets at 18" A.F.F.
- Se the rim of the
lavatories at 34" A.F.F., and insulate all exposed hot water and
drain pipes.
- Provide grab bars
behind and beside each water closet at 34" A.F.F.
- Provide a toilet
paper dispenser at 24" A.F.F.
- Provide a 18" W
x 36" H framed mirror, bottom at 39" A.F.F.
back to top
|
|
|